Juke F15 (2012 year). Service Repair Manual — part 187
EM-140
< PRECAUTION >
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PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Procedure without Cowl Top Cover
INFOID:0000000006449874
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Precaution Necessary for Steering Wheel Rotation after Battery Disconnect
INFOID:0000000006449875
NOTE:
• Before removing and installing any control units, first turn the push-button ignition switch to the LOCK posi-
tion, then disconnect both battery cables.
• After finishing work, confirm that all control unit connectors are connected properly, then re-connect both
battery cables.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If a DTC is detected, perform trouble diagnosis according to self-diagnosis results.
For vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and
cannot be turned.
If turning the steering wheel is required with the battery disconnected or discharged, follow the operation pro-
cedure below before starting the repair operation.
OPERATION PROCEDURE
1.
Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2.
Turn the push-button ignition switch to ACC position.
(At this time, the steering lock will be released.)
3.
Disconnect both battery cables. The steering lock will remain released with both battery cables discon-
nected and the steering wheel can be turned.
4.
Perform the necessary repair operation.
5.
When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button ignition switch is turned to LOCK position.)
6.
Perform self-diagnosis check of all control units using CONSULT-III.
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006752512
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the “SRS AIR BAG” and
“SEAT BELT” of this Service Manual.
The vehicle may be equipped with a passenger air bag deactivation switch. Because no rear seat exists where
a rear-facing child restraint can be placed, the switch is designed to turn off the passenger air bag so that a
rear-facing child restraint can be used in the front passenger seat. The switch is located in the center of the
instrument panel, near the ashtray. When the switch is turned to the ON position, the passenger air bag is
enabled and could inflate for certain types of collision. When the switch is turned to the OFF position, the pas-
PIIB3706J
PRECAUTIONS
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senger air bag is disabled and will not inflate. A passenger air bag OFF indicator on the instrument panel lights
up when the passenger air bag is switched OFF. The driver air bag always remains enabled and is not affected
by the passenger air bag deactivation switch.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
• The vehicle may be equipped with a passenger air bag deactivation switch which can be operated by
the customer. When the passenger air bag is switched OFF, the passenger air bag is disabled and
will not inflate. When the passenger air bag is switched ON, the passenger air bag is enabled and
could inflate for certain types of collision. After SRS maintenance or repair, make sure the passenger
air bag deactivation switch is in the same position (ON or OFF) as when the vehicle arrived for ser-
vice.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.
• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Draining Engine Coolant
INFOID:0000000006449877
Drain engine coolant and engine oil when the engine is cooled.
Disconnecting Fuel Piping
INFOID:0000000006449878
• Before starting work, check no fire or spark producing items are in the work area.
• Release fuel pressure before disconnecting and disassembly.
• After disconnecting pipes, plug openings to stop fuel leakage.
Removal and Disassembly
INFOID:0000000006449879
• When instructed to use SST, use specified tools. Always be careful to work safely, avoid forceful or unin-
structed operations.
• Exercise maximum care to avoid damage to mating or sliding surfaces.
• Dowel pins are used for several parts alignment. When replacing and reassembling parts with dowel pins,
check that dowel pins are installed in the original position.
• Cover openings of engine system with a tape or equivalent, if necessary, to seal out foreign materials.
• Mark and arrange disassembly parts in an organized way for easy troubleshooting and reassembly.
• When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specified, do exactly as specified. Power tools may be used
in the step.
Inspection, Repair and Replacement
INFOID:0000000006449880
Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Assembly and Installation
INFOID:0000000006449881
• Use torque wrench to tighten bolts or nuts to specification.
EM-142
< PRECAUTION >
[HR16DE]
PRECAUTIONS
• When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the
ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is specified,
do exactly as specified.
• Replace with new gasket, packing, oil seal or O-ring.
• Thoroughly wash, clean, and air-blow each part. Carefully check engine oil or engine coolant passages for
any restriction and blockage.
• Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust.
Before assembly, oil sliding surfaces well.
• Release air within route when refilling after draining engine coolant.
• After repairing, start the engine and increase engine speed to check engine coolant, fuel, engine oil, and
exhaust gases for leakage.
Parts Requiring Angle Tightening
INFOID:0000000006449882
• Use the angle wrench [SST: KV10112100] for the final tightening of the following engine parts:
- Camshaft sprocket (INT) bolt
- Cylinder head bolts
- Main bearing cap bolts
- Connecting rod cap bolts
- Crankshaft pulley bolt (No the angle wrench is required as bolt flange is provided with notches for angle
tightening)
• Do not use a torque value for final tightening.
• The torque value for these parts are for a preliminary step.
• Ensure thread and seat surfaces are clean and coated with engine oil.
Liquid Gasket
INFOID:0000000006449883
REMOVAL OF LIQUID GASKET SEALING
• After removing mounting nuts and bolts, separate the mating sur-
face using the seal cutter [SST: KV10111100] (A) and remove old
liquid gasket sealing.
CAUTION:
Be careful not to damage the mating surfaces.
• Tap the seal cutter [SST: KV10111100] to insert it (B), and then
slide it (C) by tapping on the side as shown in the figure.
• In areas where the seal cutter [SST: KV10111100] is difficult to use,
lightly tap the parts using a plastic hammer to remove it.
CAUTION:
If for some unavoidable reason tool such as a screwdriver is
used, be careful not to damage the mating surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1.
Using a scraper (A), remove old liquid gasket adhering to the liq-
uid gasket application surface and the mating surface.
• Remove liquid gasket completely from the groove of the liquid
gasket application surface, mounting bolts, and bolt holes.
2.
Wipe the liquid gasket application surface and the mating sur-
face with white gasoline (lighting and heating use) to remove
adhering moisture, grease and foreign materials.
JPBIA0052ZZ
JPBIA0053ZZ
PRECAUTIONS
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3.
Attach liquid gasket tube to the tube presser (commercial ser-
vice tool).
Use Genuine Liquid Gasket or equivalent.
4.
Apply liquid gasket without gaps to the specified location accord-
ing to the specified dimensions.
• If there is a groove for liquid gasket application, apply liquid
gasket to the groove.
• As for bolt holes (B), normally apply liquid gasket inside the
holes. Occasionally, it should be applied outside the holes.
Check to read the text of this manual.
• Within five minutes of liquid gasket application, install the mat-
ing component.
• If liquid gasket protrudes, wipe it off immediately.
• Do not retighten mounting bolts or nuts after the installation.
• After 30 minutes or more have passed from the installation, fill
engine oil and engine coolant.
CAUTION:
If there are specific instructions in this manual, observe them.
EMA0622D
A
: Groove
: Inside
JPBIA0010ZZ
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< PREPARATION >
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PREPARATION
PREPARATION
PREPARATION
Special Service Tools
INFOID:0000000006449884
Tool number
Tool name
Description
KV10111100
Seal cutter
Removing oil pan (upper and lower) etc.
KV10116200
Valve spring compressor
1. KV10115900
Attachment
2. KV10109220
Adapter
Disassembling and assembling valve mecha-
nism
Part (1) is a component of KV10116200, but
Part (2) is not so.
KV10112100
Angle wrench
Tightening bolts for main bearing cap, cylinder
head, etc.
KV10117100
Heated oxygen sensor wrench
Loosening or tightening air fuel ratio sensor 1
For 22 mm (0.87 in) width hexagon nut
KV10107902
Valve oil seal puller
Removing valve oil seal
KV10115600
Valve oil seal drift
Installing valve oil seal
Use side A (G).
a: 20 (0.79) dia. d: 8 (0.31) dia.
b: 13 (0.51) dia. e: 10.7 (0.421)
c: 10.3 (0.406) dia. f: 5 (0.20)
H: Side B
Unit: mm (in)
S-NT046
PBIC1650E
S-NT014
NT379
NT011
JPBIA0396ZZ
PREPARATION
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Commercial Service Tools
INFOID:0000000006449885
EM03470000
Piston ring compressor
Installing piston assembly into cylinder bore
ST16610001
Pilot bushing puller
Removing pilot converter
KV11103000
Pulley puller
Removing crankshaft pulley
KV11105210
Stopper plate
Fixing drive plate
Tool number
Tool name
Description
S-NT044
S-NT045
NT676
ZZA0009D
Tool name
Description
Quick connector release
Removing fuel tube quick connectors in en-
gine room
Spark plug wrench
Removing and installing spark plug
a: 14 mm (0.55 in)
PBIC0198E
JPBIA0399ZZ
EM-146
< PREPARATION >
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PREPARATION
Pulley holder
Crankshaft pulley removing and installing
Valve seat cutter set
Finishing valve seat dimensions
Piston ring expander
Removing and installing piston ring
Valve guide drift
Removing and installing valve guide
Valve guide reamer
1: Reaming valve guide inner hole
2: Reaming hole for oversize valve guide
Oxygen sensor thread cleaner
Reconditioning the exhaust system threads
before installing a new air fuel ratio sensor
(Use with anti-seize lubricant shown below.)
A: [18 mm (0.71 in) dia.] for zirconia heated
oxygen sensor
B: [12 mm (0.47 in) dia.] for titania heated
oxygen sensor
C: Mating surface shave cylinder
D: Flutes
Anti-seize lubricant (Permatex 133AR
or equivalent meeting MIL specifica-
tion MIL-A-907)
Lubricating oxygen sensor thread cleaning
tool when reconditioning exhaust system
threads
Tool name
Description
ZZA1010D
S-NT048
S-NT030
PBIC4012E
PBIC4013E
JPBIA0238ZZ
AEM489
PREPARATION
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Manual lift table caddy
Removing and installing engine
Tube presser
Pressing the tube of liquid gasket
Tool name
Description
ZZA1210D
S-NT052
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< BASIC INSPECTION >
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CAMSHAFT VALVE CLEARANCE
BASIC INSPECTION
CAMSHAFT VALVE CLEARANCE
Inspection and Adjustment
INFOID:0000000006449886
INSPECTION
Perform inspection as follows after removal, installation or replacement of camshaft or valve-related parts, or if
there is unusual engine conditions regarding valve clearance.
1.
Remove rocker cover. Refer to
EM-178, "Removal and Installation"
2.
Measure the valve clearance with the following procedure:
a.
Set No. 1 cylinder at TDC of its compression stroke.
• Rotate crankshaft pulley (2) clockwise and align TDC mark (no
paint) (A) to timing indicator (1) on front cover.
• At the same time, check that both intake and exhaust cam
noses of No. 1 cylinder face inside (
) as shown in the figure.
• If they do not face inside, rotate crankshaft pulley once more
(360 degrees) and align as shown in the figure.
b.
Use a feeler gauge (A), measure the clearance between valve
lifter and camshaft.
B : White paint mark (Not use for service)
PBIC3673E
1
: Camshaft (INT)
2
: Camshaft (EXH)
: Engine front
JPBIA4738ZZ
Valve clearance
: Refer to
.
JPBIA4116ZZ
CAMSHAFT VALVE CLEARANCE
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• By referring to the figure, measure the valve clearances at
locations marked “
×
” as shown in the table below [locations
indicated with black arrow (
) in the figure] with a feeler
gauge.
c.
Set No. 4 cylinder at TDC of its compression stroke.
• Rotate crankshaft pulley (2) one revolution (360 degrees) and
align TDC mark (no paint) (A) to timing indicator (1) on front
cover.
• By referring to the figure, measure the valve clearance at loca-
tions marked “
×
” as shown in the table below [locations indi-
cated with black arrow (
) in the figure] with a feeler gauge.
3.
If out of standard, perform adjustment. Refer to “ADJUSTMENT”.
ADJUSTMENT
• Perform adjustment depending on selected head thickness of valve lifter.
1.
Remove camshaft. Refer to
2.
Remove valve lifters at the locations that are out of the standard.
JPBIA4117ZZ
Measuring position
No. 1 CYL.
No. 2 CYL.
No. 3 CYL.
No. 4 CYL.
No. 1 cylinder at compression TDC
EXH
×
×
INT
×
×
B
: White paint mark (Not use for service)
PBIC3673E
JPBIA4118ZZ
Measuring position
No. 1 CYL.
No. 2 CYL.
No. 3 CYL.
No. 4 CYL.
No. 4 cylinder at compression TDC
EXH
×
×
INT
×
×
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< BASIC INSPECTION >
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CAMSHAFT VALVE CLEARANCE
3.
Measure the center thickness of the removed valve lifters with a
micrometer (A).
4.
Use the equation below to calculate valve lifter thickness for replacement.
• Thickness of new valve lifter (B) can be identified by stamp
mark (A) on the reverse side (inside the cylinder).
• Stamp mark “302” indicates 3.02 mm (0.1189 in) in thickness.
NOTE:
Available thickness of valve lifter: 26 sizes range 3.00 to 3.50 mm (0.1181 to 0.1378 in) in steps of 0.02
mm (0.0008 in) (when manufactured at factory). Refer to
.
5.
Install the selected valve lifter.
6.
Install camshaft. Refer to
.
7.
Install timing chain and related parts. Refer to
.
8.
Manually rotate crankshaft pulley a few rotations.
9.
Check that the valve clearances is within the standard. Refer to “INSPECTION”.
10. Install remaining parts in the reverse order of removal.
11. Warm up the engine, and check for unusual noise and vibration.
PBIC3195J
Valve lifter thickness calculation:
t = t
1
+ (C
1
– C
2
)
t
= Valve lifter thickness to be replaced
t
1
= Removed valve lifter thickness
C
1
= Measured valve clearance
C
2
= Standard valve clearance:
Intake
: 0.30 mm (0.012 in)
Exhaust
: 0.33 mm (0.013 in)
PBIC3196J
COMPRESSION PRESSURE
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COMPRESSION PRESSURE
Inspection
INFOID:0000000006449887
1.
Warm up engine thoroughly. Then, stop it.
2.
Release fuel pressure. Refer to
3.
Remove ignition coil and spark plug from each cylinder. Refer to
4.
Connect engine tachometer (not required in use of CONSULT-III).
5.
Install compression gauge (B) with an adapter (A) (commercial
service tool) onto spark plug hole.
• Use the adapter whose picking up end inserted to spark plug
hole is smaller than 20 mm (0.79 in) in diameter. Otherwise, it
may be caught by cylinder head during removal.
6.
With accelerator pedal fully depressed, turn ignition switch to “START” for cranking. When the gauge
pointer stabilizes, read the compression pressure and the engine rpm. Perform these steps to check each
cylinder.
CAUTION:
Always use a fully charged battery to obtain the specified engine speed.
• If the engine speed is out of the specified range, check battery liquid for proper gravity. Check the
engine speed again with normal battery gravity. Refer to
PG-111, "How to Handle Battery"
• If compression pressure is below minimum value, check valve clearances, and parts associated with
combustion chamber (valve, valve seat, piston, piston ring, cylinder bore, cylinder head, and cylinder
head gasket). After the checking, measure compression pressure again.
• If some cylinder has low compression pressure, pour small amount of engine oil into the spark plug hole
of the cylinder to recheck it for compression.
- If the added engine oil improves the compression, piston rings may be worn out or damaged. Check pis-
ton rings and replace if necessary.
- If the compression pressure remains at low level despite the addition of engine oil, valves may be mal-
functioning. Check valves for damage. Replace valve or valve seat accordingly.
• If two adjacent cylinders have respectively low compression pressure and their compression remains
low even after the addition of engine oil, cylinder head gaskets are leaking. In such a case, replace cyl-
inder head gaskets.
7.
After inspection is completed, install removed parts.
8.
Start the engine, and check that the engine runs smoothly.
9.
Perform trouble diagnosis. If DTC appears, erase it. Refer to
JPBIA4119ZZ
a
: 20 mm (0.79 in)
JPBIA0171ZZ
Compression pressure
: Refer to
EM-152
< SYMPTOM DIAGNOSIS >
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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH troubleshooting Chart
INFOID:0000000006449888
1.
Locate the area where noise occurs.
2.
Confirm the type of noise.
3.
Specify the operating condition of engine.
JPBIA4739GB
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
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4.
Check specified noise source.
If necessary, repair or replace these parts.
A: Closely related
B: Related
C: Sometimes related
—: Not related
Location
of noise
Type of
noise
Operating condition of engine
Source of
noise
Check item
Refer-
ence page
Before
warm-
up
After
warm-
up
When
start-
ing
When
idling
When
racing
While
driving
Top of en-
gine
Rocker
cover
Cylinder
head
Ticking or
clicking
C
A
—
A
B
—
Tappet
noise
Valve clearance
Rattle
C
A
—
A
B
C
Camshaft
bearing
noise
Camshaft journal oil
clearance
Camshaft runout
Crank-
shaft pul-
ley
Cylinder
block
(Side of
engine)
Oil pan
Slap or
knock
—
A
—
B
B
—
Piston pin
noise
Piston to piston pin oil
clearance
Connecting rod bushing
oil clearance
Slap or
rap
A
—
—
B
B
A
Piston
slap noise
Piston to cylinder bore
clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsion
Knock
A
B
C
B
B
B
Connect-
ing rod
bearing
noise
Connecting rod bushing
oil clearance
Connecting rod bearing
oil clearance
Knock
A
B
—
A
B
C
Main bear-
ing noise
Main bearing oil clear-
ance
Crankshaft runout
Front of
engine
Front cov-
er
Tapping or
ticking
A
A
—
B
B
B
Timing
chain and
chain ten-
sioner
noise
Timing chain cracks
and wear
Timing chain tensioner
operation
Front of
engine
Squeak-
ing or fizz-
ing
A
B
—
B
—
C
Drive belt
(Sticking
or slip-
ping)
Drive belt deflection
Creaking
A
B
A
B
A
B
Drive belt
(Slipping)
Idler pulley bearing op-
eration
Squall
Creak
A
B
—
B
A
B
Water
pump
noise
Water pump operation
EM-154
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DRIVE BELT
PERIODIC MAINTENANCE
DRIVE BELT
Checking
INFOID:0000000006449889
• Inspection should be done only when engine is cold or over 30
minutes after the engine is stopped.
• Visually check belts for wear, damage, and cracks on inside and
edges.
• Turn crankshaft pulley two time clockwise, and check tension on all pulleys is equal before doing the test.
• When measuring deflection, apply 98 N (10 kg, 22 lb) at the ( ) marked point.
• Measure the belt tension and frequency with acoustic tension gauge (commercial service tool) at the ( )
marked point.
CAUTION:
• When the tension and frequency are measured, the acoustic tension gauge should be used.
• When checking immediately after installation, first adjust it to the specified value. Then, after turning
crankshaft two turns or more, readjust to the specified value to avoid variation in deflection between
pulleys.
Tension Adjustment
INFOID:0000000006449890
CAUTION:
• When belt is replaced with new one, adjust belt tension to the value for “New belt”, because new belt
will not fully seat in the pulley groove.
• When tension of the belt being used exceeds “Limit”, adjust it to the value for “After adjusted”.
• When installing a belt, check it is correctly engaged with the pulley groove.
• Never allow oil or engine coolant to get on the belt.
• Never twist or bend the belt strongly.
1.
Remove front fender protector (RH). Refer to
2.
After loosening lock nut (A) of idler pulley (5) to release from the
specified torque state, temporarily tighten the lock nut to the fol-
lowing torque
CAUTION:
1
: Alternator
2
: Water pump
3
: Crankshaft pulley
4
: A/C compressor
5
: Idler pulley
6
: Drive belt
Belt Deflection/Belt Tension and Frequency: Refer to
.
PBIC3642E
Location
Location of adjuster and tightening method
Drive belt
Adjusting bolt on idler pulley
4.4 N·m (0.45 kg-m, 39 in-lb)
1
: Alternator
2
: Water pump
3
: Crankshaft pulley
4
: A/C compressor
5
: Idler pulley
6
: Drive belt
PBIC3643E
DRIVE BELT
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• When the lock nut is loosened excessively, the idler pulley tilts and the correct tension adjust-
ment cannot be performed. Never loosen it excessively (more than 45 degrees).
• Put a matching mark on the lock nut (A), and check turning angle with a protractor. Never visu-
ally check the tightening angle.
3.
Adjust the belt tension by turning the adjusting bolt (B). Refer to
.
CAUTION:
• When checking immediately after installation, first adjust it to the specified value. Then, after
turning crankshaft two turns or more, readjust to the specified value to avoid variation in deflec-
tion between pulleys.
• When the tension adjustment is performed, the lock nut should be in the condition at step“ 2”. If
the tension adjustment is performed when the lock nut is loosened more than the standard, the
idler pulley tilts and the correct tension adjustment cannot be performed.
4.
Tighten the lock nut.
Removal and Installation
INFOID:0000000006449891
REMOVAL
1.
Remove front fender protector (RH). Refer to
2.
Loosen the lock nut (A), and then adjust the belt tension by turn-
ing the adjusting bolt (B).
3.
Remove drive belt.
INSTALLATION
1.
Pull the idler pulley in the loosening direction, and then tempo-
rarily tighten the lock nut (A) to the following torque.
NOTE:
Do not move the lock nut from the tightened position. Go to step “2”.
2.
Install the drive belt to each pulley.
CAUTION:
• Check that there is no oil, grease, or coolant, etc. in pulley grooves.
• Check that the belt is securely inside the groove on each pulley.
3.
Adjust drive belt tension by turning the adjusting bolt (B). Refer to
.
CAUTION:
: 34.8 N·m (3.5 kg-m, 26 ft-lb)
1
: Alternator
2
: Water pump
3
: Crankshaft pulley
4
: A/C compressor
5
: Idler pulley
6
: Drive belt
PBIC3643E
1
: Alternator
2
: Water pump
3
: Crankshaft pulley
4
: A/C compressor
5
: Idler pulley
6
: Drive belt
: 4.4 N·m (0.45 kg-m, 39 in-lb)
PBIC3643E
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